Established in 2000, Hangzhou Jianfa Machinery Co., Ltd was qualified in hardware processing and then has started in manufacturing cold forging heat sinks since 2012. We are professional forged pin fin heat sink manufacture in China and get support and appreciation from our customers for its good quality and reasonable price. We continue to introduce new highly sophisticated equipment and technologies to improve our productivity and technique level of all our employees. We have already designed hundreds of cold forging heat sinks which were exported to over 20 countries. We could also manufacture specific products according to your drawings and requirements. By the way, free samples are available.